#include <machine/rtems-bsd-user-space.h>
/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (C) 2012-2013 Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifdef __rtems__
#include <machine/rtems-bsd-program.h>
#endif /* __rtems__ */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/ioccom.h>
#include <ctype.h>
#include <err.h>
#include <fcntl.h>
#include <inttypes.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "nvmecontrol.h"
/* Tables for command line parsing */
static cmd_fn_t perftest;
#define NONE 0xffffffffu
static struct options {
bool perthread;
uint32_t threads;
uint32_t size;
uint32_t time;
const char *op;
const char *intr;
const char *flags;
const char *dev;
} opt = {
.perthread = false,
.threads = 0,
.size = 0,
.time = 0,
.op = NULL,
.intr = NULL,
.flags = NULL,
.dev = NULL,
};
static const struct opts perftest_opts[] = {
#define OPT(l, s, t, opt, addr, desc) { l, s, t, &opt.addr, desc }
OPT("perthread", 'p', arg_none, opt, perthread,
"Report per-thread results"),
OPT("threads", 'n', arg_uint32, opt, threads,
"Number of threads to run"),
OPT("size", 's', arg_uint32, opt, size,
"Size of the test"),
OPT("time", 't', arg_uint32, opt, time,
"How long to run the test in seconds"),
OPT("operation", 'o', arg_string, opt, op,
"Operation type: 'read' or 'write'"),
OPT("interrupt", 'i', arg_string, opt, intr,
"Interrupt mode: 'intr' or 'wait'"),
OPT("flags", 'f', arg_string, opt, flags,
"Turn on testing flags: refthread"),
{ NULL, 0, arg_none, NULL, NULL }
};
#undef OPT
static const struct args perftest_args[] = {
{ arg_string, &opt.dev, "namespace-id" },
{ arg_none, NULL, NULL },
};
static struct cmd perftest_cmd = {
.name = "perftest",
.fn = perftest,
.descr = "Perform low-level performance testing",
.ctx_size = sizeof(opt),
.opts = perftest_opts,
.args = perftest_args,
};
CMD_COMMAND(perftest_cmd);
/* End of tables for command line parsing */
static void
print_perftest(struct nvme_io_test *io_test, bool perthread)
{
uint64_t io_completed = 0, iops, mbps;
uint32_t i;
for (i = 0; i < io_test->num_threads; i++)
io_completed += io_test->io_completed[i];
iops = io_completed/io_test->time;
mbps = iops * io_test->size / (1024*1024);
printf("Threads: %2d Size: %6d %5s Time: %3d IO/s: %7ju MB/s: %4ju\n",
io_test->num_threads, io_test->size,
io_test->opc == NVME_OPC_READ ? "READ" : "WRITE",
io_test->time, (uintmax_t)iops, (uintmax_t)mbps);
if (perthread)
for (i = 0; i < io_test->num_threads; i++)
printf("\t%3d: %8ju IO/s\n", i,
(uintmax_t)io_test->io_completed[i]/io_test->time);
}
static void
perftest(const struct cmd *f, int argc, char *argv[])
{
struct nvme_io_test io_test;
int fd;
u_long ioctl_cmd = NVME_IO_TEST;
memset(&io_test, 0, sizeof(io_test));
if (arg_parse(argc, argv, f))
return;
if (opt.flags == NULL || opt.op == NULL)
arg_help(argc, argv, f);
if (strcmp(opt.flags, "refthread") == 0)
io_test.flags |= NVME_TEST_FLAG_REFTHREAD;
if (opt.intr != NULL) {
if (strcmp(opt.intr, "bio") == 0 ||
strcmp(opt.intr, "wait") == 0)
ioctl_cmd = NVME_BIO_TEST;
else if (strcmp(opt.intr, "io") == 0 ||
strcmp(opt.intr, "intr") == 0)
ioctl_cmd = NVME_IO_TEST;
else {
fprintf(stderr, "Unknown interrupt test type %s\n", opt.intr);
arg_help(argc, argv, f);
}
}
if (opt.threads <= 0 || opt.threads > 128) {
fprintf(stderr, "Bad number of threads %d\n", opt.threads);
arg_help(argc, argv, f);
}
if (strcasecmp(opt.op, "read") == 0)
io_test.opc = NVME_OPC_READ;
else if (strcasecmp(opt.op, "write") == 0)
io_test.opc = NVME_OPC_WRITE;
else {
fprintf(stderr, "\"%s\" not valid opcode.\n", opt.op);
arg_help(argc, argv, f);
}
if (opt.time == 0) {
fprintf(stderr, "No time speciifed\n");
arg_help(argc, argv, f);
}
io_test.time = opt.time;
open_dev(opt.dev, &fd, 1, 1);
if (ioctl(fd, ioctl_cmd, &io_test) < 0)
err(1, "ioctl NVME_IO_TEST failed");
close(fd);
print_perftest(&io_test, opt.perthread);
exit(0);
}
